1、工艺管道管壁厚及等级对照表壁厚管表号管径无缝钢管壁厚管表号焊接钢管镀锌焊管管道等级所用材质SCH20SCH30SCH40SCH80SCH160XXS管径SCH20SCH40SCH40加厚SCH80加厚DN15223。04。05.0DN1521.3-2。8-3。51。6A120DN2027-3。04。07.0DN2026.9-2。8-3。51.6B1Q235B+镀锌DN2534-3.54。59。0DN2533。7-3。24.01。6B2焊管Q235BDN3242-3.55。0DN3242.43。54。02。5A120#DN4048-4。05.010。0DN4048.33。54.52。5A220D
2、N50603。54.05。0-DN5060.33。8-4。52。5L11CR18NI9DN65764.55。06.0-DN6576.14。04.5-2。5K100CR17NI14MO2DN80894。5-5。56.5DN8088.94.05。04.0A120DN1001145.06.07。0DN100114.3-5。04。0A220#DN1251405。06。58.0-DN125139.74.0-5。5-4.0C115MORDN1501685.56。57.09.528。0DN150168.34。5-6。04.0L11CR18NI9DN2002196.57.08。010。035。0-4。0K100CR17NI14MO2DN2502736.58。09。513。040。0-6。4K100CCR17NI14MO2DN3003256。58。510。014。0-10。0A120GDN3503778。09。511.0-42。0A120DN4004268.09。5-DN4504808。011。0-DN5005309。513。0-DN6006309。514.0-
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